Evidence map›Paper›PMID 24158494›Full record

ArticleOncotarget2014

The KLK5 protease suppresses breast cancer by repressing the mevalonate pathway.

Georgios Pampalakis, Osahon Obasuyi, Olga Papadodima, Aristotelis Chatziioannou, Vassileios Zoumpourlis, Georgia Sotiropoulou

Open access · hybridAbstract read
In one paragraph

Article in Oncotarget, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 37 citations in OpenAlex.

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  11. Kallikreins emerge as new regulators of viral infections.Cellular and molecular life sciences : CMLS · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Georgios PampalakisDepartment of Pharmacy, University of Patras, Rion-Patras 26500.
Osahon Obasuyi
Olga Papadodima
Aristotelis Chatziioannou
Vassileios Zoumpourlis
Georgia Sotiropoulou
National Hellenic Research Foundation · GRUniversity of Patras · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Kallikrein-related peptidase 5 (KLK5) displays aberrant expression in cancer. However, any functional association is missing. Here, we show that reconstitution of KLK5 expression in non-expressing MDA-MB-231 breast cancer cells suppresses malignancy in vitro and in vivo dose-dependently. Reactivation of KLK5 suppressed key EMT genes. Unexpectedly, we identified altered expression of genes encoding enzymes of the mevalonate pathway typical of those observed upon cholesterol starvation. Consistently, we found that SREBF1, the master regulator of the mevalonate pathway was induced. KLK5 re-expression leads to reduced cellular cholesterol and fatty acid synthesis and enhanced uptake of LDL-cholesterol. Suppression of the mevalonate pathway in KLK5 transfectants was further shown by reduced synthesis of isoprenoids. Indeed, we found diminished levels of active RhoA, a signaling oncoprotein that requires prenylation for activation. We propose that reduced RhoA activation plays a dominant role in suppression of malignancy by KLK5, since geranylgeranyl pyrophosphate restored active RhoA in KLK5-reverted cells resulting in increased malignancy. For the first time, we suggest that a protease may suppress breast cancer by modulating the mevalonate pathway.

Indexed as

Signal TransductionAnimalsApoptosisBlotting, WesternBreast NeoplasmsCell ProliferationCholesterolCholesterol, LDLFatty AcidsFemaleHumansImmunoenzyme TechniquesKallikreinsMevalonic AcidMiceMice, SCIDCholesterolCholesterol, LDLFatty AcidsKallikreinsKLK5 protein, humanMevalonic AcidrhoA GTP-Binding ProteinRNA, MessengerRNA, Small InterferingSREBF1 protein, humanSterol Regulatory Element Binding Protein 1

Identifiers

PMID24158494
PMCPMC4058013
OpenAlexW2098263858

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.